Pulverizer



Aug. 4, 1925. 1,548,395 G. S. TARBELL PULVERIZER Filed Allg: 29. 1923 f @me 3. 7nbc// Patented Aug. 4, 1925.

UNITED STATES PATENT oFFlcE.

GROVE S. TARBELL, OF COLVILLE, WASHINGTON, ASSIGNOR OF ONE-HALF T LOUIS STRAUSS, OF GOLVILLE, WASHINGTON.

PULVER-IZER.

Application led August 29, 1923. Serial No. 659,982.

To all whom t may concern.'

Be it known that I, GROVE S. TARBELL, a citizen of the United States, residing at Colville, in Stevens County and State of Vaslrington, have invented certain new and useful Improvements in Pulverizers, of which the following is a specification.

My presentinvention relates to improvements in Pulverizers` adaptedforuse as an agricultural implement in the cultivation of the soil and particularly designed to follow the harrow for the purpose of finely dividing the sodsformed by the harrovv. The implement is also serviceable invbreaking up the crust of the soil-surface and mulching the soil to render the latter capable of retaining moisture. To this end the invention contemplates a Wheeled, horse drawn implement ycomprising a drag-.drum to be dragged over the soil and providedV with Wear devicesfortearing and loosening the plants and crushing and pulverizing the soil surface. And the invention further comprises means in combination With the dragdrum whereby the latter may be oscillated as it advances'to bring into use the different Wear devices thereon for the purpose of f moree'ifectively performing the functions of the implement and prolonging the durability of the Wear devices. 'Ihe invention may be said'to reside in certain novel combinations and arrangements of parts involving the drag-drum and its adjustable supporting Wheel as Will hereinafter bey more fully` set forth and-claimed. In the accompanying drawings I have illustrated one complete example of the physical embodiment of my inventionv wherein the parts are combined and arrangedin accordance with the best mode I have thusfar devised for the practi-y calfapplication of the principles of my invention. l Y f `Figure lis arperspective vievv fromthe rear of an implement embodying my invention.

Figure 2 is a partial side yelevation and partial longitudinal vertical sectional view of the implement with the draft devices omitted.

Figure 3 is a bottom plan view of the drag-drum, showing the Wear chains thereon.

Figure 4 is a perspective view of an adjustable bearing hub and connections for the Wheel by means of which the latter may be adapted for eccentric movement.

In carrying out my invention as illustrated in thedrawings I utilize a drag-drum D to be dragged over the surface of the soil with its longitudinal axis at right angles to the direction of travel. For convenience in construction and use this drum is preferably of `semi-cylindrical shape in cross section A. suitable number of cross bars or l vices hereI indicated as chains 5, but it Will be understood that Wire cables o-r similar devices may be substituted for the chains if desired. These chains are arranged in parallelism and extend longitudinally from end to end of the drum, and at the respective ends the drum is provided `with -complementary notches 6 in the bars 3 through Which the chains are turned and the ends of the chains are then anchored to suspending hooks as 7 which are firmly fixed in the ends of the drum asto the cross cars or braces 4. The links, of the chains provide convenient means for suspending Athem from the pairs of hooks andthe chains are adjusted as to their length in proportion to the desired relation of the chains to the drum. Thus the chains may betaut andlie in close relation to the exterior face of the drum, or they may be slackened slightly, as indicated in Fig.v 3 to drag beneath the drum. The formation of the chains in links it Will be apparent pro-vides for auflexibley Wear element, or a series of such elements, Which are very effective in tearing out the plants and pulverizing the soil or sod as the drum with the Wear elements beneath it is dragged over the surface of the soil.

Horse power is utilized for pulling the implement and the horses may be attached to the draft device comprising the equalizing chain 8 attached at the front of the drum, the equalizing draft bar 9, and single trees 10, as illustrated in Fig. 1.-

At the approximate longitudinal center of the upper portion of the drum a king pin 11 is provided .Which projects ,vertically therefrom and to which `the rectangular metal frame 12 is coupled in suitable man'- ner as by the head 13, and a seat 14 for the;

frame. s

The implement frame is 'supported on a driver of the implement is supported on the single traction Wheel 15 Which is preferably Y provided with a corrugated tread surface 16,

andthe Wheel as seenin Fig'. `1 is-located ivithin'the frame at the rear of the dragdrum B. The axle 17 of the Wheel isvsu 4 ported in bearing blocks 18 attached at tie underside of the main frame bars and the wheel is movable as toits bearings with relation to the aXle from a concentric position to a more or less eccentric position.V Thus one of the spokes as 20 of the Wheel is `fashioned with a' radially extending bea-ring slot 21 for the accommodation of an adjustable bearing hub 22 which is `formed as `an integral or rigid part with the plates 23'and 24.

f These plates are arranged in parallelism and project angularly from the hub and at their free ends they are provided with longitudie nally extending slots 25; The hub or sleeve 22 is made in sections so that the sections can lbe inserted from opposite sides into the s" oke-slot V234 at the center of theivheel, and tile aXlel is then passed Vthrough the bearh ing blocks 18 and the sectional hub. The tivo 'slotted plates 23 and24f lie at the exf tenor and opposite sides 'ofthe slotted spoke and a securing bolt 26 is passed through the alined slots 25 oit' the .plates and a bolt 27 in the spoke 20',and anut 28 secures the plates to the Spoke. rlhus it Will be apparent that the Wheel may be slipped into eccentric p0 sition and the tivo A'plates and 'spoke bolted together to retain the Wheel in adjusted position Vhen in eccentric position and ro tating it will be obvious that the frame, at

itsrear end is caused to rise and fall withV the niovernentof the Wheel and this'imovenient of the frame results in a rocking or oscillating movement cifv the rounded drinn with relations@ the groundsurface; 'As the drum advances and is 'thus` oscillated'theseveral'vvear devices or chains on the exterior 'of the drain Aare broughtinto positive and l irictional engagement 'with the ground surikilrce.:` 'n this manner the severalch'ains are successively and alternately brought into use and are thus more effective in `tearing the surface ofthe soil than would bev/single chain7 and the Weight of the drum is utilized Mfor crushin `o1: breaking and `pulveriaing the soil.

he chainsare `eifectu`ally prevented from displacement by their connec-` tion with the notched ends of the drum, and may be replaced or readjusted with facility `and convenience because of the simplicity of their suspension from the hooks 7 of the drum. i

i It WillV be` understood Vof course 'that l the Wheel "may be utilized in its `concentrio posi-` tion I'When `desired, andlthefeccentricity of the wheel-may be increased or decreased to impartV a diilierentl` oscillation or movement to the drinn-drag.v i

Changes and alterations may be made in the illustrated cx'emplication of the' imple# @cking ment VwithinA the `scope Yoflthev-appended claims Without departing` from` there irit of my invention. yFor instance in hitc ing to the equalizing chain 8: .the couplingimayl Vbe made a little to one 'side ofthefcenter in order that the machine may .be `drawnlever the `groundat an angle; to the directinlof movement.A By oscillating the implement it will be apparent 1 that f stones; roots;y etc., are permitted to pass more freely underthe imi plement than Wouldbe the case Withthe wheel secured in concentric position. When being used to level `the field some dirt or soil is pushedahead of the implement asitprogresses, the amount' depending` uponn the Weight'of the machine," condition of! thelsoil theslats for,` said chains;'andjsnspending hooks carried by transverse braces ifo'rlr pendingthe ends oi' said chains,

testimony whereoflaix my u signltre.

Y tiene. 

